Scientific Name
Polydactylus sexfilis  
Polydactylus sexfilis六絲多指馬鮁
by: Yi-Lang Jheng
Author (Valenciennes, 1831) Depth 20 - 50M
Chinese 六絲多指馬鮁 Poisonous Fish No 
Family_Chinese 馬鮁科 Economic Fish Yes 
Family F380 Polynemidae Edible Fish Yes  Chinese In Mainland China 六絲多指馬鮁 
Max Length 61 cm  Aquarium Fish No  Common Name 六絲馬鮁、午仔 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan West、South、PonFu 
Habitats Benthos、Estuary、Coastal  Holotype Locality Mauritius 
Synonyms Filimanus xanthonema, Polyactylus sexfilis, Polydactylus kuru, Polynemus kurru, Polynemus kuru, Polynemus sexfilis, Polynemus sexfills, Polynemus sexifilis   
Reference Shen(1994);The Live Marine Resources of the Western Central Pacific, Vol.5(FAO, 2001)  Cuvier, G. etc. 1831 Hiroyuki Motomura, Andi Iqbal Burhanuddin etc. 2000 Motomura, H. etc. 2001 Hiroyuki Motomura etc. 2002 
Specimen List AMNH90084. NMMBP00787. NMMBP01315. NMMSTP00352. NTUM02008. NTUM02331. NTUM04422. NTUM06193. NTUM06211. NTUM06840. NTUM08131. NTUM08133. NTUM08138. NTUM08160. ROM71778. RUSI35621.  
Common Name Sixfeeler threadfin; Pacific thread-fin fish; Sixfinger threadfin; Six-fingered threadfin; Moi threadfin; Golden sixthread tesselfish 
Redlist Status NL Not in IUCN Redlist     
Characteristic Mediumsized to large species. Eye diameter greater than snout length. Snout moderately conical; tooth patch on vomer a wide “v” shape changing to a rounded triangle; premaxillary, dentary, palatine and ectopterygoid tooth patches all wide; width of band of teeth on premaxillae less than 2 times in space separating band of teeth on one premaxilla from other; postorbital length less than distance from anterior of snout to posterior margin of preopercle, postorbital length less than or equal to 3/4 of body depth at second dorsal-fin origin. Gill rakers on first gill arch 27 to 32. First dorsal fin with VIII spines; second dorsal fin with I spine and 11 to 13 soft rays; anal fin with III spines and 9 to 12 soft rays; anal-fin base about equal to second dorsal-fin base; caudal-peduncle length greater than length of anal-fin base; pectoral fins with 14 to 17 simple rays, the fins insert low on body, reaching to middle of pelvic fins or 3/4 of their length; 6 pectoral filaments, fifth filament, from ventralmost, the longest, extending to 3/4 of pelvic fins or past origin of anal fin. Lateral-line scales 58 to 70. Body brown or dark olive dorsally, becoming lighter ventrally, adults with about 7 dark olive brown longitudinal lines above lateral line and about 10 below lateral line which are more faintly developed; sometimes reddish towards mouth and nose; dorsal, anal, caudal, and pectoral fins are grey or black distally.
habitats This schooling species occurs along sandy and rocky shorelines and over sandy lagoon bottoms, often in zones of turbulence. Often encountered in river mouths or brackish mangrove estuaries. Feeds mainly on crustaceans (shrimps and crabs), polychaete worms 
Distribution Widespread in the Indo-Pacific feom Mauritius, Seychelles, Kenya and many islands of the northern Indian Ocean. Indonesia north through the Philippines, Ryukyu Islands to Ogasawara and Yaeyama Islands east through the islands of the Pacific to the Hawaiia 
Utility Marketed fresh.